超高分子聚乙烯三通 矿用超高分子聚乙烯三通型号:Φ65~Φ1000mm,65mm,76mm,89mm,110mm,127mm,133mm,140mm,159mm, 200mm,219mm,250mm,273mm,300mm,325mm,350mm,377mm,400mm,426mm,495mm, 530mm,536mm,630mm,800mm,1000mm
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